From 6607edab2da8c03ffd525ef5caaf2dfb3c581de2 Mon Sep 17 00:00:00 2001
From: Carlos Rodrigues <david-181@hotmail.com>
Date: Wed, 16 Oct 2019 15:46:41 +0100
Subject: [PATCH] refactor(compiler-core): avoid has call (#314)

---
 packages/compiler-core/src/transforms/hoistStatic.ts | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/packages/compiler-core/src/transforms/hoistStatic.ts b/packages/compiler-core/src/transforms/hoistStatic.ts
index 733c903f..ecadeddf 100644
--- a/packages/compiler-core/src/transforms/hoistStatic.ts
+++ b/packages/compiler-core/src/transforms/hoistStatic.ts
@@ -116,8 +116,9 @@ function isStaticNode(
       if (node.tagType !== ElementTypes.ELEMENT) {
         return false
       }
-      if (resultCache.has(node)) {
-        return resultCache.get(node)!
+      const cached = resultCache.get(node)
+      if (cached !== undefined) {
+        return cached
       }
       const flag = getPatchFlag(node)
       if (!flag || flag === PatchFlags.TEXT) {